Determination of The Concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) In Water Infusion of Selected Brands of Tea Consumed in Colleges of Education in Delta State
Abstract
This study investigated the concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) in water infusion of selected brands of tea sold in the Colleges of Education in (Warri and mosogar) Delta State Nigeria, with a view to providing information on the potential health risk associated with the consumption of these teas. A total of five different brands of teas which includes sample T1, T2, T3, T4 and T5 were collected from retail shops. The concentrations of the 16 priority PAHs in these samples was measured by gas chromatography equipped with mass selective Detector (GC-MSD) after dichloromethane/acetone extraction and clean up. The concentration varied from 128.70 to 623.40 µg kg-1 . The distribution pattern of PAHs in the teas were in the order of 4 Rings> 5 Rings> 6 Rings> and 3 Rings, 2 Rings was not detected. The tea infusion with water indicated concentration higher than the maximum permissible limit of (5?g/kg) which pose potential health risk to tea consumers as stated in European Commission regulation (EC) No.1881/2006.The hazard index values indicated that there was no presence of non-carcinogenic effects on exposure to PAHs for children and adult. The total cancer risk values resulting from child and adult exposure of PAHs exceeded the target value (USEPA 2009) of 1 × 10-6 suggesting that exposure to PAHs in the 5 samples carries a significant risk of cancer to humans. The dominance of high molecular weight PAHs indicated that the major sources of PAHs in these tea samples is are from combustion processes.
Keywords
Dichloromethane/Acetone Polycyclic Aromatic Hydrocarbons (Pahs), Gas Chromatography, Mass Selective Detector (GC-MSD).
Citations
IRE Journals:
Ighrakpata F.C , Ucheaga C.
"Determination of The Concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) In Water Infusion of Selected Brands of Tea Consumed in Colleges of Education in Delta State" Iconic Research And Engineering Journals Volume 9 Issue 4 2025 Page 366-373
IEEE:
Ighrakpata F.C , Ucheaga C.
"Determination of The Concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) In Water Infusion of Selected Brands of Tea Consumed in Colleges of Education in Delta State" Iconic Research And Engineering Journals, 9(4)
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